To examine effects of stress on noxious inhibition and temporal summation (TS) in tension-type headache. Background. - Stress is the most commonly reported trigger of a chronic tension-type headache (CTH) episode; however, the mechanisms underlying this are unclear. Stress affects pain processing throughout the central nervous system, including, potentially, mechanisms of TS and diffuse noxious inhibitory controls (DNIC), both of which may be abnormal in CTH sufferers (CTH-S).
CATHCART, S., Winefield, A., Lushington, K., & Rolan, P. (2010). Noxious inhibition of temporal summation is impaired in chronic tension-type headache. Headache, 50(3), 403-412. https://doi.org/10.1111/j.1526-4610.2009.01545.x